Surface Analysis Laboratory - XPS and AFM

Surface Analysis Laboratory - XPS and AFM

Fun Facts

UHV-XPS Characterization

Students, Staff and faculty are trained to operate the Kratos Axis Ultra XPS. The Kratos Axis Ultra XPS serves as the primary characterization instrument for X-ray Photoelectron Spectroscopy (XPS) on campus. It is equipped with both a monochromatic Al K-α and a dual non-monochromated Mg/Al source in addition to a He source for ultraviolet photoelectron spectroscopy. Angle resolved measurements are possible with the 4-axis manipulator and the system is fitted with an Argon sputtering gun for surface etching.

Please acknowledge NSF-DMR grant #0114098

Near Ambient Pressure XPS (NAP-XPS) 

SAL houses a newly installed near ambient pressure XPS (NAP-XPS) designed by SPECS that utilizes an in-situ cell capable of conducting XPS measurements in the presence of a gas of interest up to a maximum pressure of 20 mbar. The cell temperature can also be varied in the range of 200-800 K. The system is fitted with a monochromated Al K-α source and an Ar ion sputtering gun. Lastly, a residual gas analyzer is fitted to examine the gas phase flowing through the cell. For more details please visit the NAP-XPS proposal submission page.

Please see for further details regarding sample and instrumental considerations.

Purchase of the ambient pressure XPS was supported by that National Science Foundation through NSF MRI award 1625792.

Bruker Icon Dimension AFM

Bruker Icon Dimension AFM can provide a high-resolution image of the topography of a sample's surface. Some of the options available are heated transition imaging and liquid imaging. The system is compatible with Bruker’s “ScanAsyst” modes.


Select Publications - Kratos Axis Ultra XPS

  • Jain, Deeksha; Zhang, Quang; Gustin, Vance; Hightower, Jonathan; Gunduz, Seval; Co, Anne C.; Miller, Jeffrey T.; Asthagiri, Aravind, Ozkan, Ummit T. Experimental and DFT Investigation into Chloride Poisoning Effects on Nitrogen-Coordinated Iron–Carbon (FeNC) Catalysts for Oxygen Reduction Reaction, J. Phys. Chem. C, 2020, 124 (19), 10324-10335.
  • S. Londo, S. Biswas, J. Husek, I. V. Pinchuk, M. J. Newburger, A. Boyadzhiev, A. H. Trout, D. W. McComb, R. Kawakami, and L. R. Baker, Ultrafast Spin Crossover in a Room-Temperature Ferrimagnet: Element-Specific Spin Dynamics in Photoexcited Cobalt Ferrite, J. Phys. Chem. C, 2020, 124, 21, 11368–11375.
  • Xiao, N., Zheng, J., Gourdin, G., Schkeryantz, L., & Wu, Y. (2019). Anchoring an Artificial Protective Layer to Stabilize Potassium Metal Anode in Rechargeable K–O2 Batteries. ACS Appl. Mater. Interfaces, 2019, 11 (18), pp 16571–16577.
  • Guo, X., Wang, Y., Yao, T., Mohanty, C., Lian, J. and Frankel, G.S. Corrosion interactions between stainless steel and lead vanado-iodoapatite nuclear waste form part I. 2020 NPJ Mater. Degrad., 2020, 13, 1-12.


Select Publications - NAP-XPS

  • Ning, S.; Zhang, S.; Sun, J.; Li, Congping Li, Z.; Khalifa, Y.; Zhou, S.; Cao, J.; Wu, Y. Ambient Pressure X-ray Photoelectron Spectroscopy Investigation of Thermally Stable Halide Perovskite Solar Cells via Post-Treatment. ACS Appl. Mater. Interfaces, 2020, 12, 43705-43713.
  • Ailawar, S.; Hunoor, A.; Khalifa, Y.; Miller, J. T.; Edmiston, P. L.; Ozkan, U. S. Elucidating the Role of Ethanol in Aqueous Phase Hydrodechlorination of Trichloroethylene over Pd Catalysts Supported on Swellable Organically Modified Silica (SOMS). Appl. Catal. Published online DOI:


Select Publications - AFM

  • Ji, M., Mason, M. L., Modarelli, D. A. & Parquette, J. R.. Threading carbon nanotubes through a self-assembled nanotube. Chem. Sci., 2019, 10, 7868–7877.
  • Ji, M. & Parquette, J. R. Enhanced Stability of Peptide Nanofibers Coated with a Conformal Layer of Polydopamine, Chem. Eur. J., 2020, 26, 8572-7578.



Dr. Yehia Khalifa 

Laboratory Manager
CBEC 084 
(614) 292-3792